NCV8705

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3

Table 1. PIN FUNCTION DESCRIPTION

Pin

Name

Pin No. −

Fixed

DFN8/DFNW8

Pin No. −

Adjustable

DFN8/DFNW8

Pin No. −

Fixed

WDFN6

Pin No. −

Adjustable

WDFN6

Description

OUT

1

1

1

1

Regulated output voltage pin. A small 1

mF ceramic capac-

itor is needed from this pin to ground to assure stability.

GND

4

4

3

3

Power supply ground. Expose pad must be tied with

GND pin. Soldered to the copper plane allows for effective

heat dissipation.

EN

5

5

4

4

Enable pin. Driving EN over 0.9 V turns on the regulator.

Driving EN below 0.4 V puts the regulator into shutdown

mode.

IN

8

8

6

6

Input pin. A small capacitor is needed from this pin to

ground to assure stability.

ADJ

−

3

−

2

Feedback pin for set−up output voltage. Use resistor di-

vider for voltage selection.

N/C

2, 3, 6, 7

2, 6, 7

2, 5

5

Not connected. This pin can be tied to ground to improve

thermal dissipation.

Table 2. ABSOLUTE MAXIMUM RATINGS

Rating

Symbol

Value

Unit

Input Voltage (Note 1)

−0.3 V to 6 V

V

Output Voltage

V

Enable Input

V

Adjustable Input

V

Output Short Circuit Duration

Indefinite

s

Maximum Junction Temperature

125

°C

Storage Temperature

−55 to 150

°C

ESD Capability, Human Body Model (Note 2)

2000

V

ESD Capability, Machine Model (Note 2)

200

V

Stresses exceeding those listed in the Maximum Ratings table may damage the device. If any of these limits are exceeded, device functionality

should not be assumed, damage may occur and reliability may be affected.

1. Refer to ELECTRICAL CHARACTERISTICS and APPLICATION INFORMATION for Safe Operating Area.

2. This device series incorporates ESD protection and is tested by the following methods:

ESD Human Body Model tested per AEC−Q100−002 (EIA/JESD22−A114)

ESD Machine Model tested per AEC−Q100−003 (EIA/JESD22−A115)

Latchup Current Maximum Rating tested per JEDEC standard: JESD78.

Rating

Symbol

Value

Unit

Thermal Characteristics, WDFN6 2x2 mm

Thermal Resistance, Junction−to−Air

Thermal Resistance Parameter, Junction−to−Board

116.5

30

°C/W

Thermal Characteristics, DFN8 3x3 mm / DFNW8 3x3 mm

Thermal Resistance, Junction−to−Air

Thermal Resistance Parameter, Junction−to−Board

92.6

35.1

°C/W